Rotary pump.



T. A. BAT-EMAN.

ROTARY PUMP..

APPLICATION FILED MAY l. 191s.

2 SHEETS- SHEET l.

2O i "my" 2Q au@ n Patented .my 24, 1917. l

T. A. BATEMAN.

ROTARY PUMP.

APPucAIloN FILED MAY l, 191e.

Patented July 24, 1917.

f z SHEETS-SHEET 2.

Thomas Pr 5mi-:MRM

THOMAS A. BATEMAN, OF PGRTLAND, OREGON.-

ROTARY PUMP.

Application led May l, 1916.

To @ZZ whom t may concern:

Be it known that I, THOMAS A. BATEMAN, a citizen of the United States, residing at Portland, inthe county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Rotary Pumps, of which the following is a speciiication, reference being had to the accompanying drawings. j

This invention relates to rotary pumps and has for one of its objects to simplify and improve thelconstruction of pumps of that character disclosed in Patent, Number 1,178,617, issued to me April 11, 1916.

It is another important object of the invention to provide a pump of the rotary type wherein a minimum number of operati'lng parts are employed which are very compactly arranged in a pump having a relatively high capacity.

It is one of the more particular objects of the invention to provide a rotary pump embodying` a rotor mounted in a case provided with inlet and discharge ports, rotary cut oi valves, and means carried by the rotor and operatively engaging means on the cut off valves to continuously rotate said valves.

It is an additional object of my invention to provide a double acting rotary pump having inlet and discharge ports on opposite sides of the pump case, and a single rotor operating in the case to continuously draw water through the inlet ports and discharge the same from the outlet ports.

With the above and other objects in view, my invention consists in the novel features of construction, combination and arrangel ment of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which,

Figure 1 is a vertical sectional view of a rotary pump constructed in accordance with the preferred embodiment of my invention;

Fig. 2 is a section taken on the line 2 2 of Figr1;

gig. 3 is a perspective view of the rotor; an

Fig. 4 is a similar view of one of the cut oft'valves.

, Referring in detail yto the drawing, 5 designates generally the body section of the pump cylinder' or case, one side of which is closed and provided with a suitable stuffing box 6 while the `omaosite side of said ease body is open; ease body lli' provided.-

Specication of Letters Patent.

Patented Juiy 2d, 1917.

serial no. 94,743.

with an integral base or standard 7, whereby the same may be suitably mounted or anchored upon a platform or other support ing structure. Upon the annular wall of the case 5, at diametrically opposite points, intake and discharge ports 8 and 9 respectively, are provided, said ports being arranged in pairs. An inlet port is disposed below the center of the case on one side thereof, and the corresponding outlet port below the center of the case on the opposite side thereof.

10 designates the removable side plate which is adapted to be bolted or otherwise secured upon the open side of the case body 5 and is also provided with a stuffing box 11. Upon the inner side of the plate 10, the longitudinally extending7 hollow, cylindrical body 12 is integrally formed, and in diametrically opposite sides thereof the valve receiving chambers or pockets 13 are provided. The walls of these pockets are integrally connected by a hub 14. 15 designates the power shaft which is mounted in the hub 14 and extends through the side plates of the pump case. Upon this shaft, within the case and next adjacent to the closed end of the case 5, the head plate 16 of the rotor is securely keyed or otherwise iixed. 17 designates an internal gear laterally spaced from the plate 16 and con I nected thereto by the integral bars or blades 18 which are disposed in suitably spaced relation between the gear and the rotor plate 16 at their outer edges. It will be observed that the inner edges of these connecting blades 18 are disposed on a line coincident with the edges of the teeth of the internal gear 17.

, ln each of the pockets or chambers 13 of the cylindrical body 12, a rotary cutoff valve 19 is mounted.` Each of these cylindricall cut off valves is splined or keyed upon a shaft 20 which is journaled in a suitable bearing projection on the removable case plate 410. The valves 19 are ofl alength equivalent to the width of the ports 8 and 9', and the peripheries of the valves are disposed in close contiguous relation to the integral connecting walls between said pairs of ports on the opposite sides of the pump case, the axes of said rotary valves being disposed in the same horizontal plane as the axis of the shaft 15. Each of the cylindri-v cal cut oft' valves is provided upon. its end face neat adjacent to the ease plate 10, with a gear or pinion 21, preferably formed integral with the valve body and at diametri-y cally opposite points each cut off valve is further providedr with a deep groove or channel 22 extending the entirelength of the valve body and to the baseline of the teeth of the pinion 21.

In the operation of the pump, the rotor may be driven directly through the shaft or indirectly through eitherone of the rotary valves 19. Assumingk that the rotor carrying the internal gear 17 is rotating iii the directionindicated by the Larrow in Fig. 1, as the bars orblades 18 of the rotor successively passi the intake yport 8' on they left, water is ldrawn intoftlie upper portion of the case through said ports, and in a similar inaifin'ei" is drawn into the lower portion ofthe case through the intake port S on the right. e The gear 17 and` thepinioiis 21 rare of suoli ratio that as the `blades 18 approach,

the cut olif valves, they will enter one of the channels or grooves 22 in the periphery of the (valve, and asfthe outer yedges of these blades frictionallycontact withthe wall of the case between the ports S and 9, it will be manifest that communication is entirely cut off' between the upper and lower sections 'of the case so that there can be no'backward flowof, the water as it is drawn into the intake port or discharged` through the discharge ports on opposite sides of they case.

The blades 1S will thus successivelw7 dis'- charge ka quantity of water through theports 9 inthe continued rotation of the rotor in one direction so that such dischargefis prac,- tically continuous. The rotorthus operating both above and below its axial center, carries` the `water through only a comparatively small arcor curve so that there will be but little frictional resistance which insures the easy operation of the pump with a minimum ofpower.y Attention isalso invited tothe eXtJifemely simple construction of the :water expelling means which maybe formed in one integral casting with the body of the ro tor, thus eliminating the usual provision of f sliding blades or vanes as shown in my prior patent, which are commonly employed in this type of pump. The cut off valves being located between the opposite side walls of the ycase and entirely within the operating plane 'of4l the rotor blades, enable me to very compac'tly arrange -the several elements so that the pump will occupy butsniall space, It will also be appreciated that l have devised such a pump construction which may be manufactured and sold at comparatively small, cost even the larger' sizes, though having a maximum pumping capacity in operation. y

lVhile I have above disclosed the preferred form and construction of the several elements of my improved pump, it is, of course, apparent that the elements thereof what 1 desire to claim and secure by Letters Patent is :M

1. A rotary pump including a case having an yintake and discharge port on each side thereof, a single, rotary valve member f mounted in thecase between each 'pair 'of in take and discharge ports, a rotor mounted in the case including'a plurality of spaced bladestraversing the entire'widtli of the ports uin the `rotationof the rotor, gearing operatively connecting the rotor to the valve members to vcontinuously rotate the'latter,y` eachk of thevalve members being provided in f its periphery at diametrically opposite points with grooves toy receive the rotor blades- 2. A rotary pumpincluding ,a case havside,` thereof, said case includingv a` hollow cylindrical body provided with pockets at diainetrically opposite points','r"otary cut off valves'mounted in said pockets between the intake and discharge ports on each side of the case, and arotor mounted within the case and having relatively kedtluid ifm pelling means movable between saidfcylinf drical 'body l,and the annularfwall'of the kpump case,r andv gearingy operatively confi necting the rotor andthe cut valves to i 'continuously rotate the latter atall times prevent communication yloetwx'een' the intake and discharge ports on the saine side of the pump case. y

In rotary pump, a case having an intake and discharge port oiieach side thereof, a single rotary valve mounted in each side ofthe case andl preventingk communication between the intake and discharge ports on the saine side thereof,a rotor mounted in the case and yprovided with spaced iinpelling blades to traversetl'ie intake ports and draw ywaterinto thecase and discharge thesame from thedischarge port on ythey opposite 'side of the case, and gearing operativelyy con'- necting the rotor and the cut off valves to continuously rotatefsaidvalves in the" direction of the discharge, each'of said valves bef ingrformed to lpermit of the passagelofthe impellingI ylades betweenthe valves and the wall of the case." Y i A rotary pump including a casehaving an intake and discharge port on veach side thereof, rota-ry valves mounted in the case between the intake anddischarge ports, a rotor includingr a plate mounted within the case, an internalgefar later'lly spaced1 from said plate and integrally ycnn'ectedthereto a series of sp'acediluid iinpelli'ng blades,A

@act @fthe Yanes being *greeted carecen@ saidblades to permit of thepassage of the ing' an intake and discharge port on each ico iio

saine between the valves and the wall of the pump ease, and a pinion on one end of each in spaced concentric relation to the annular wall of the case, said body being provided with pockets at diametrically opposite points, rotary valves mounted in said pockets, a rotor mounted within the oase having a plurality of water impelling blades movable between said cylindrical body and the ease wall, each of said valves being provided witli a plurality of longitudinal grooves to accommodate said blades and permit the same to pass between the valves and the case wall, an internal gear connecting the ends of said blades, and a pinion on one end of each valve meshing with said gear whereby the valves are constantly rotated in the operation of the rotor.

In testimony whereof I hereunto aiiiX my 25 Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

